Manufacture of brake shoes



Feb. 19 1924.

J. S. THOMPSON MANUFACTURE OF BRAKE SHOES Filed July 20. 1923 Application filed July 20 0 all "tn/10m. it 722.41g comer):

Be it. known that. it, James S. 'lmz-tursorr, a citizen of the United States. Pelham, in the county of o State of New York, have invented c- I new and useful improvements in the i facture of Brake Shoes of which the following i a specification.

lt his invention relates to the manufacture of brake shoes and it has for its object to facilitate the operation oi setting up the mold for casting the. brake shoe, to reduce. the time and labor involved and lessen the cost of manufacture.

More specifically, my invention has l'oi' its object to assemble in a unit the parts \Vlllt'll are to he inserted in the. mold cavity for embedment in the shoe asting, and which usually comprise a-reinforciug back, a steel lug and a core for. forming the opening in the lug, whereby the unit can he handled easily and quickly and Without. clam. e thereto or to the mold.

And a further object. of the invention is to tie the reinforcing back, the steel lug; and the core. for forming the opening in the. lug together in a compact unit. so that it can be. easily handled without disarranging parts, whereby it. can he inserted bodily in the mold cavity and supported or susjaiuled therein While. the. mold is being closed and during the casting operation.

lin the accompanying drawings 1 have shown two selected embodiments of the invention, in which the dillerenee resides in the shape of the. core, and referring; thereto Fig. l is a 1 -i .I's1 e -ti\e view of an as semhly unit for use in a mold such as that dest'i'ihed in 'my eo-pending applications. Serial Nos. 352,771 and (352.771? filed July 20 i923.

Fig. 9 is also a perspm-tive view ot assembly unit for use in a mold su h as t dLSCl'liThu in my :o-;eudiug 'a' plira't'i iled vl Serial h'os. HD1571) and 352.71 6 20, 1928.

Fig. 3 is a transverse seetumal view the. line l -I. oi l.

lief 'ring to the. drawings, 1 forcing hark, t3

the steel lug and for forming; the opening in i the'sho 'lhese parts a usual Way, the hook l being engaged w in the. lug and extending lengthwise of the hazel; on ioth sides of the lug. in Fig. l I have shown i core. oi a yartieular l'orm for use in a molt. luivin a cavity therein shaped. to receive this core, and in .l ig. 3 l. have shown anot ol eore adapted to lit in a mold ing" a cavity made to receive.

l; it. do not strict myself to the. use oi? a haelt or a or a core of the. kind illustrated in the. (u au'i og-gs to!" it will be obvious that my uveu'tion is adaptalile for embodiment vvuu hacks, lugs and cores of many ditl'erent kinds. and l Wish it to be understood that my invention is not limited or restricted by the disclosure oi the selected t'oruis he sin.

:mion consists in tying the. parts Log in in an sssemhly so that they run he hauled and inserted in the mold as a unit. er handling Optl'flllUH is snupa ilitated, the danger of damaging practically eliuuuateih and the ports becoming disarraug'ed 1,. 11 1 .n 'Q atolou. l mu isi .u.. hy l)l' )\'l(l!ll Wire x'lneh are, passed l around the. eore. 'm-.1 v i, "1, i i .1; uuima a on (it a su o t. tun .\..t at. enga', ll will. the. back by io'lhillig' the ends together at H. liud ll eonveuieut to make the twist. beneath the hark, but it can he otl: .rwlse disposed if found more. desirable. The core his snugly in the. lug between the top oi the lug; and the top oi the ltlit'lfll'tf- 'ti. .1 i m e" '1 i] t t 1. 1a,; out mt. slow, (.1 t uv u; tuuaggt 1:. side W es of the rmnl'oreiug inn-h to hold the. l)2U t In proper relatioi lo the lung and wire ties set-ore the hurl; and the row together 11' a. rigid manner to assemble all th e.

.ruioning oi l'i'u'" t' the mold.

ages in the form.

.Lgenient of parts me iven'eion to adapt it I nous, without departing tion a from the spirit or sacrificing-the advantages thereof, and I consider myself entitled to make all such changes as fairly fall within the seope of the following claims.

I claim:

1. In the manufacture of brake shoes, an assembly unit of parts to be inserted in the mold cavity of the l'Jl'tlh't shoe mold. and comprising a reinforcing hack. a core for forming the opening in the attaching lug of the shoe, and means for fastening the back and the core together.

In the inanntactnre of hralce shoes, an assen'ibly unit of parts to he inserted in the mold cavity of the lH'tlh't shoe mold. and comprising a reinforcing hark, an attaching lug a core for forming the opening in the lug, and means for fastening the hack and the core together.

3. In the inai'iul'actnre ol hrake shoes. an assembly unit of parts to he inserted in the mold cavit5 of the brake shoe mold. and comprising a reinforcing back, a steel lug engaged with said back, a core for forming the opening in the lag and interposed between the lug and the hack, and means for fastening the back and the core together.

at. In the manufacture of brake shoes, an assembly unit of parts to be inserted in the mold cavity of the brake shoe mold, and comprising a reinforcing hack, a core for forming the opening in the attaching lag of the shoe, and a Wire fastened around the core and the back for securing said parts together. F

In the manufacture of brake shoes, an assembly unit-of parts to be inserted in the mold cavity of the brake shoe mold, and comprising a reinforcing back, a steel lug engaged with said hack, a core for forming the opening in said'lng, and Wires fastened around the (ore and the back on opposite sides of said lug for securing the back and core together.

JAMES B. THOMPSON. 

